Peep sight for firearms



(in? 2 9 5 s 9 .2 1 4 5R B. POE

PEEP SIGHT FOR FIREARMS Dec. 14, 1%48.

Filed March 28, 1947 Inreu/m' 37? 6'6 F I n A rm rneys Patented Dec. 14,1948 iiiiii tiii UNITED STATES PATENT OFFICE PEEP SIGHT FOR FIREARMSBryce Poe, Kansas City, Mo.

Application March 28, 1947, Serial No. 737,863

Claims. 1

adapts itself to precision production and close tolerances therebyreducing possible mechanical errors to a minimum; which, afteradjustment can not he accidentally moved out of adjustment or theadjustment thereof changed without the Referring more specifically tothe drawing, the peep sight in its entirety, constituting the invention,is designated generally I and constitutes generally a housing section 8,an outer cylinder 9 and an inner cylinderv Ill.

The housing section I comprises an elongated base II and an integralbarrel or cylinder portion 12 which is disposed thereabove andlongitudinally thereof and which is provided with a bore I3 of circularcross section and which extends longitudinally therethrough. The base His provided with an undersurface H which is shown use of a special tool,thus substantially locking the sight in adjustm nt against unauthorizedtampering therewith, nd which is capable of being accurately adjusted bya single adjustment for making corrections for elevations and deflec-[\tion or windage.

Still another object of the invention is to provide a substantiallyenclosed peep sight which will afford a smooth exterior, irrespective ofthe setting thereof, to thereby obviate any possibility of any of themoving parts of the sight striking an obstruction such as the interiorof a saddle boot, a weapons case, clothing or brush, andto provide asight having no projecting knobs or other extensions capable of catchingon obstacles, so that a particular sight setting may be maintainedindefinitely and under corresponding conditions of terrain, wind andlight, may be utilized at spaced time intervals and with-out requiringresetting of the sight, or only a partial resetting thereof.

Various other objects and advantages of the invention will hereinafterbecome more fully apparent from the following description of thedrawing, illustrating a preferred embodiment of the invention, andwherein:

Figure 1 is a side elevational view, partly in longitudinal sectionshowing a preferred embodiment of the improved peep sight;

Figure 2 is a rear elevational view thereof, showing the peep sightapplied to a portion of the upper part of a firearm receiver;

Figure 3 is a view similar to Figure 2 but looking toward the forwardend of the peep sight;

Figure 4 is a side elevational view, partly in longitudinal section ofthe inner cylinder of the peep sight;

Figure 5 is a side elevational view of the outer cylinder thereof, and

Figure 6 is an exploded perspective view of the inner and outercylinders and their connecting elements.

as being concave in cross section to rest flush on the rounded upperside of the receiver or barrel [5 of a rifle or other suitable firearm,not shown. It will be readily apparent that the undersurface l4 could beof various shapes to conform to the contour of the upper surface of anyreceiver or barrel on which it is adapted to be mounted. The base I Iextends beyond the ends'of the barrel or cylinder portion l2 and isprovided adjacent each end thereof with an upwardly flared opening Itfor receiving the flared head of a screw fastening ll each of whichextends into a threaded upwardly opening recess 18 in the receiver orbarrel 15 for detachably mounting the peep sight I thereon. When thefastenings I! are tightened, the heads thereof will not extend above theupper surface of the base H and said fasteners will cooperate to retainthe under surface H of base in flush engagement with the upper surfaceof the barrel or receiver to thereby securely attach the peep sight 1thereto. 1

The outer cylinder 9, which is of circular cross section externally, issized to slidably and rotatably engage in the bore l3 and is providedwith an eccentrically disposed bore 19 which extends longitudinallytherethrough and which the inner cylinder I0 is sized and shaped to's'lidably and rotatably engage. The outer cylinder 9 is provided with adiametrically disposed bore 20 formed in the thickened portion thereofand adjacent the forward end of said cylinder 9 and which has an innerend opening into the bore I9 and an outer end which opens outwardly ofthe periphery of said cylinder to receive a pin II which is of a lengthgreater than that of the bore 20. The cylinders 9 and III are ofapproximately the same length and when the cylinder I0 is applied to thebore l8 and with the ends thereof disposed flush with the ends of thecylinder 9, the inner end of the pin 2| will seat in a portion of anannular, outwardly opening groove or channel 22 of the inner cylinder l0for rotatably connecting said cylinders 9 and I0.

As best seen: in Figure 1, the barrel or cylinder portion 12 is providedwith an annular groove or channel 23 which opens inwardly into the boreI3 thereof and said barrel I2 is provided with a longitudinallydisposed, inwardly opening groove 24 having an inner end communicatingwith the annular groove 23 and an outer end opening outwardly of theforward end of said cylinder portion I 2. The outer end of the pin 2|projects beyond the periphery of the outer cylinder 9, when the innerend thereof is seated in the groove 22, said outer end is adapted to bereceived in the groove 24 for permitting the connected cylinders 9 andill to be inserted into the bore l3 through the forward end of saidcylinder or barrel l2 and so that said outer end of the pin 2| may thusbemoved into engagement with the groove 23, so that by rotation of thecylinders 9 and i0, said cylinders will be rotatably engaged with thebarrel l2. Thus it will be readily apparent that the ends of the pin 2|will be retained in engagement with the grooves 22 and 23 so as toturnably and non-slidably mount the cylinder 9 in the housing 8 and thecylinder ID in said cylinder 9.

The inner cylinder I is provided with an eccentrically disposed peepsight bore 25 which extends longitudinally therethrough and which isprovided with a restricted portion 26, disposed contiguous with thegroove 22 thereof.

As best seen in Figure 3, the forward end of the cylinder 9 is providedwith spaced tool receiving recesses or sockets 21 and the complementaryend of the cylinder I0 is provided with a single tool receiving recessor socket 28, which is diametrically spaced from its bore 25.

The opposite end of the cylinder 9 is provided with circumferentiallyspaced, longitudinally extending slots 29, each of which opens into thebore l9 and outwardly of the periphery of said cylinder 9 and each ofwhich extends to the rear end of the cylinder, as best illustrated inFigure 6. The base portion of the housing section 8 and adjacent portionof the barrel part l2 thereof are provided, on opposite sides of saidsection 8, with inwardly extending threaded bores 30, formed by drillingtransversely through the section 8 and internally threading the ends ofthedrilled bore. The upper part of the intermediate portion of thedrilled bore opens into the bore I3, as seen at 3|. adapted to receivean Allen type set screw 32 having a conical inner end 33, received inthe complementary bore portion 3| and which, when advanced, extends intothe bore l3 for clamping engagement with the cylinder 9 for fixedlysecuring said cylinder against rotation within the bore l3. The setscrews 32 also compress the slotted end of the cylinder 9 for clampingvthe inner cylinder ID within the bore l9 and against rotation relativelythereto.

Assuming that the peep sight 1 is applied and assembled in the manner aspreviously described, and as illustrated in the drawings, and that thecylinders 9 and ID are arranged, as seen in Figures'2 and 3, correctionsin elevation and/or deflection may be made by moving the peep sight bore25 relatively to the housing section 8 by rotating the inner cylinder l0within the bore l9 sufiiciently to move bore 25 the desired andnecessary distance from the center of bore l3, after slightly looseningset screws 32, and then rotating the cylinders as a unit within bore l3sufficiently to move the bore 25 to the desired and necessary directionfrom the center of bore l3, after further loosening set screws 32. Theset screws 32 are loosened or tightened with a con- Each threadedportion 30 is 4 ventional Allen type wrench, not shown, and a specialwrench, not shown, provided with two prongs, one of which engages eachofthe sockets 21, may be employed for turning the cylinder 9 in the borel3, and another two-prong wrench, having prongs arranged to engage thesocket 28 and the bore 25, and which may constitute the opposite end ofthe aforementioned pronged wrench, may be employed for turning the innercylinder [0 in the cylinder 9 for accomplishing the vertical ortransverse displacement of the peep sight bore 25 from its centralposition of Figures 2 and 3.

It will thus be readily apparent that a peep sight of extremely simpleconstruction is provided having no knobs or other projections capable ofcatching on clothing, brush, saddle boots or the like, and which iscapable of being readily adjusted to compensate for elevations ordeflections and which may be clamped in adjusted position so that thesetting of the sight can not be tampered with or varied without the useof a special tool.

Various modifications and changes are contemplated and may obviously beresorted to, with out departing from the spirit and scope of theinvention as hereinafter defined by the appended claims.

I claim as my invention:

1. In a peep sight of the character described, an outer housing sectionprovided with a longitudinal bore extending therethrough, an outercylinder rotatably disposed in said bore and detachably containedtherein, said outer cylinder having an eccentrically disposed boreextending longitudinally therethrough, an inner cylinder detachablymounted in said outer cylinder bore and rotatably retained therein, saidinner cylinder being provided with an eccentrically disposed peep sightbore extending longitudinally therethrough, and said cylinders beingrotatable as a unit or independently of one another for vertically orlaterally displacing said peep sight bore relatively to the outer,housing section, said outer cylinder having a slotted end, and means fordetachably clamping the-outer cylinder to the housing' and forcontracting its slotted end for clamping the inner cylinder in the boreof said outer I cylinder.

2. In a peep sight of the character described, an outer housing sectionhaving a base adapted to be detachably mounted. on the barrel orreceiver of a firearm and provided with a longitudinal bore extendingtherethrough, an outer cylinder rotatably disposed in said bore anddetachably contained therein, said outer cylinder having aneccentrically disposed bore extending longitudinally therethrough, aninner cylinder detachably mounted in said outer cylinder bore androtatably retained therein, said inner cylinder being provided with anececntrically. disposed peep sight bore extending longitudinallytherethrough, and said cylinders being rotatable, as a unit orindependently of one-another for vertically or laterally displacing saidpeep sight bore relatively to the outer, housing'section, said outercylinder being provided with a diametrically extending bore opening intothe bore thereof and outwardly of its periphery, a pin of a greaterlength than said diametrical bore and slidably disposed therein,saidinner cylinder having an annular groove for receiving the inner endof the pin, and said housing having an annular inwardly opening groovecommunicating with the bore thereof for receiving'the outer ehd of thepin for rotatably connecting the parts.

3. In a peep sight of the character described, an outer housing sectionhaving a base adapted to be detachably mounted on the barrel or receiverof a firearm and provided with a longitudinal bore extendingtherethrough, an outer cylinder rotatably disposed in said bore anddetachably contained therein, said outer cylinder having aneccentrically disposed bore extending longitudinally therethrough, aninner cylinder detachably mounted in said outer cylinder bore androtatably retained therein, said inner cylinder being provided with aneccentrically disposed vpeep sight bore extending longitudinallytherethrough, and said cylinders being rotatable as a unit orindependently of one another for vertically or laterally displacing saidpeep sight bore relatively to the outer, housing section, said outercylinder being provided with a diametrically extending bore opening intothe bore thereof and outwardly of its periphery, a pin of a greaterlength than said diametrical bore and slidably disposed therein, saidinner cylinder having an annular groove for receiving the inner end ofthe pin, and said housing having an annular inwardly opening groovecommunicating with the bore thereof for receiving the outer end of thepin for rotatably connecting the parts, and said housing having alongitudinally extending groove opening outwardly of one end thereof andinto its inwardly opening groove, through which the outer end of saidpin is movable for applying and removing the cylinders relatively to thehousing.

4. In a peep sight of the character described, an outer housing sectionhaving a base adapted to be detachably mounted on the barrel or receiverof a firearm and provided with a longi: tudinal bore extendingtherethrough, an outer cylinder rotatably disposed in said bore anddetachably contained therein, said outer cylinder having aneccentrically disposed bore extending 6 unit or independently of oneanother for vertically or laterally displacing said peep sight borerelatively to the outer, housing section, one end of said outer cylinderbeing longitudinally slotted, and set screw means disposed in opposedrelationship in said housing section and extending into the bore thereoffor engaging the slotted end of the outer cylinder for clamping saidouter cylinder relatively to the housing section and for compressing theslotted end thereof for clamping the inner cylinder therein.

5. In a peep sight of the character described, a base section adapted tobe secured to a firearm receiver or barrel, an outer cylinder rotatablydisposed in the base section, and an inner cylinder rotatably mounted inthe outer cylinder and eccentrically thereof and provided with aneccentrically disposed peep sight bore extending longitudinallytherethrough, said cylinders being rotatable within the housing sectionas a unit or independently of one another for vertically and/ orlaterally displacing the peep sight bore relatively to the housingsection, said outer cylinder having a contractable portion, and meansadjustably disposed in the housing section for clamping the outercylinder thereto and for contracting said portion thereof to clamp theinner cylinder therein.

BRYCE POE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS FOREIGN PATENTS Country Date Great Britain 1913France 1918 Number Number

